Shoulder bag



FIG. 1 is a front view of a shoulder bag showing my new design;

FIG. 2 is a back view thereof;

FIG. 3 is a perspective view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a side view thereof, front side facing to your left. 

The ornamental design for a shoulder bag, as shown. 